Nice little potato/turnip/carrot/cabbage/etc. julianne 'grater/slicer' , as for use in making 'hash brown' style cooked items .Looks to be missing parts (blade,hand crank.etc.) to do the job , though .

This one looks to be 1980's to my eye ... these were & are still used in French/euro home kitchens , more or less human-powered food processing system(s) , commonly used with a catch-bowl or pan underneath .